Happybuy Linear Rail 2PCS SBR12-1000mm,Linear Guide 2xLinear Guide Rails and 4xSquare Type Carriage Bearing Blocks,CNC Rail Kit,Linear Rails and Bearings Kit,for Automated Machines and Equipments

I purchased 2 pieces of linear rail, and I have to say the price was unbelievably affordable. Despite the low cost, the quality and performance of the product exceeded my expectations. The rails were sturdy and well-made, providing a smooth and precise operation. I was so impressed that I decided to buy an additional 2-piece rail set, and I couldn’t be happier with my decision. The delivery was incredibly fast—my order arrived a full five days ahead of schedule, just one day after placing it! The packaging was also excellent, ensuring the rails arrived without any damage. The seller clearly understands the importance of careful packing and timely shipping, which added to my positive experience. Overall, I am thoroughly satisfied with this purchase. Whether you're a hobbyist or a professional woodworker, these rails are a fantastic investment. I would definitely recommend this product to others!

I bought 2 different sets of these. For making a router sled and they don't come with screws. So I had fun trying to find the correct size and there aluminum so easily stripped out. It it were not for them not coming with the bolts for the slide blocks I would recommend .

I noticed the blocks are not quite as smooth as I had hoped, but they do the job quite nicely. I used only one of the rails so far. I had to cut it to fit my cheap 3d printer. I replaced the flimsy 8mm tray rails with something a bit more substantial and much more robust. The carriage is much more sturdy now and auto-leveling the machine is much easier since the bed doesnt wiggle any more. It may have been a bit overkill, but thats my style.

These are good quality made rails. They can be used for a number of things . I used them in my Motorhome. I made a box , with a tablble top inside , I slide it behind driver seat , and out to open table .

I needed to make a jig for using a router to mill large slabs flat on both sides. The slabs are too large for a planner or a drum sander. If the slab was not close to square, a belt sander would not be able to cut enough off. So instead of spending $1000 for a jig, I am building one with the help of these Linear Rails with the ball bearing slides. I actually bought 2 sets of the rails, 1 set is 60 inches and the this set (40 inches). The longer rails will be mounted on a side that is parralell to the slab on each side for the jig to rest on and be able to move it from one end to the other and the shorter rails will attach to the bearings of the longer rails an the router will sit on a platform attached to the bearings of the shorter rail. This allows for the router to be moved easily across the slab and from one end to the other and hold the router flattening bit at the same level.

Everything is good except the ball bearings are low quality. When sliding the moving piece snags on the rod and grinds.

Not the best linear rails, but with some adjustment, they turned out to be very good. A little noisy, but perfect for my applications.

I originally said they were okay. I take that back! The bearings are total JUNK! I can't use these due to the rough bearings. I'm guessing QC isn't up to par. They're not great. I planned on mounting them to 2040 extrusions. The holes are just a little too far apart to work. I'm going to figure out a way to make them work, but if they just changed the pattern by 1mm, it would fall right onto a 2040. Seems like a commonsense thing to do. I need to find a good straight edge as I don't believe they are perfectly straight.

Very good quality and exactly what I needed.

Bonsoir, j'ai refait le plateau de ma scie circulaire sous table, qui ne me convenait plus. Je voulais que mon guide parallèle ait une glisse parfaite et précise. Dés que je l'aurais mis en place je vous enverrais une photo. Très amicalement JH

Received rails today no bearings with it. Renders it completely useless. Item showed up quick.